Iyze
vibration
signals
into
1/ 3 octaves
or
octaves. The Type
2511
can
measure
in
accel-
eration
, velocity, and displacement modes
with
frequency
range (acceleration and veloc-
ity)
from
approximately 1
Hz
ro
15kHz
.
Accelerometer
\
:-
..
--
Band P
ass
Filter 1
61
7
170364
Fig
. 3 .
13.
Arrangement
possibilities
for
frequency
analysis
with
a
Vi
-
bration
Meter
1.
Connect
the measuring
instrumentation
as
shown
in
Fig .3 .
13.
2.
Perform
the
preliminary
checks,
adjustments
and
calibration
as detailed in
the
Vibra-
tion
Meter's
Instruction
Manual.
3 . Perform the
preliminary
adjustments
for
the
Band Pass Filter as described in section
3 .1.
4 .
Set
the
Band Pass Filter controls as detailed
in
section 3.2 .1/ 5.
5.
On
the
Vibration
Meter
, select
the
vibration
parameter
and
meter
function
required
for
the
measurements.
6. Push
the
EXTERNAL
FILTER
switch
on
the
rear panel
of
the
Type
2511
to
"In
" .
7 .
Turn
the
Vibration
Meter
RANGE SELECTOR one step
from
" Ref." to the least sensi-
tive
scale
for
the
required
parameter
in
metric
or
British
units,
as required.
8. Push
the
BATIERY
switch
" On" on
the
Type
2511.
9.
Apply
the
vibration to be analyzed
to
the
Accelerometer
.
10
.
Turn
the
RANGE SELECTOR knob
until
a reading is obtained on
the
meter
scale.
11
.
Select
the
next
frequency
band on
the
Type
1617
, and take a
new
measurement
.
3.5
.
DIGITAL
DATA
TRANSFER
AND
REMOTE
CONTROL
VIA
IEC
INTERFACE
BUS
30
The
digital
interface in
the
Type
1617
is designed according to
the
IEC
proposal "
Inter
-
face
for
Programmable
Measuring
Apparatus
Byte-Serial
Bit
Parallel"
TC
66
(Central
Of
-
fice)
22
. Since the
only
significant
difference
between
this
proposed standard and
the
IEEE standard
488-1975
/ ANSI MC 1 .1-
1975
is
the
type
of
connector used,
compatabil-
ity
w i
th
the
IEEE
/ ANSI standard is
only
a
question
of
which
connecting cable is used.
Connection
of
the
Type
1617
to
an
IEC
interface
bus
system is made
from
the
Digital
Bus
socket on the rear panel
of
the
Type
1617
using
B & K standard cable
AO
0129
.
Connection
to
an
IEEE
/ ANSI interface bus system is made
from
the
same socket
using
cable
AO
0157
.
It
is
important
to note
that
although
the
interface
in
the
Type
1617
is designed accord-
ing
to
the
IEC
proposal, compatability '
with
interfaces
designed according
to
the
IEC
pro-
posal
or
the
IEEE
/ ANSI standard by
other
manufacturers
cannot
be guaranteed since
dif
-
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